156317770864 has 40 divisors (see below), whose sum is σ = 320930427888. Its totient is φ = 73504158720.

The previous prime is 156317770853. The next prime is 156317770877. The reversal of 156317770864 is 468077713651.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128574 + ... + 573730.

Almost surely, 2^156317770864 is an apocalyptic number.

It is an amenable number.

156317770864 is an abundant number, since it is smaller than the sum of its proper divisors (164612657024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

156317770864 is a wasteful number, since it uses less digits than its factorization.

156317770864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446473 (or 446467 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 55.

The spelling of 156317770864 in words is "one hundred fifty-six billion, three hundred seventeen million, seven hundred seventy thousand, eight hundred sixty-four".